Oil can, lubricator, and the like



July 12, 1927.

A. JOHNSON ET AL OIL CAN, LUBRICATOR, AND THE LIKE Filed-May 24, 1926 2Shoots-Sheet. l

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INVENTORS.

A TTORNEY.

July 12, 1927.

JOHNSON ET AL OIL CAN, LUBRICATOR, 'AND THE LIKE Filed May 24. 1926 2Shoots-Sheet 2 8 m T N E n V N m 0 SW wmM I QJ J 6 F mm To L A ATTORNEY-Patented m 12, 1927.

UNITED STATES PATENT OFFICE.

ALB-II JOHNSON, OLOF PEBSSON, AND PETE JOHNSON, OI KBLLIHER,SASKATCHEWAN,

CANADA.

OIL CAN, LU'BBIOA'IOB, m m

Application fled Kay :4, mac, mm Io. 111,340, an n flush. in; 11, me.

Our presentinvention ap'pertains generally to improvements in the art of011 cans, lubricators and the like, commerciall known as lunger cylinderoil pumps, an specific y to a double acting device of this char acter,as described in the present specification and illustrated in theaccompanying drawings.

The invention consists essentially of the novel features pointedout-broadly and cifically in the claims for novelty following adescription containing an explanation in idetail 0 an acceptable form ofthe inven- More specifically, our invention is analogous to handactuated plunger cylinder oil, pumps of that type designed to pump oil,from either end. of the oilreceptacle. The rincipal object of ourinvention is to provide an ,eflicient' pump of this character, extremelysimple in construction, easy to manufacture and inexpensive from amaintenance view int.

Briefly, it inclu es dual parallel stationary ball-valved cylinders,both communicatwith a common discharge spout. A reciprocatable unitcomprising a plunger cylinder and a piston, operate in con unctionwithsaid stationary cylinders to pump oil through the same. This pum unit isoperated by a thumb actuated crumed lever mounted upon the receptaclecover in convement proximity to the receptacle handle. The novelcharacteristics and advantages as of our invention will be apparent byperusing the following specification in conjunction with the drawingshereunto annexed in which:

Fig. 1 is a transverse medial vertical section of an oil pumpconstructed in accordance with an acceptable embodiment of ourinvention, and

p Fig. 2 is a similar view showing certain of the components in arelative position.

The receptacle with which my invention is associated may be of anyapproved design such as illustrated in the annexed drawings andgenerally indicated by the numeral 3,

thesame being provided with a detachable cover 4 which is retained inposition by a locking ring 5, said detachable cover and locking ringhaving-no direct bearing upon the subject matter of the presentinvention.

A spout 6 is secured to the cover 4 and the receptacle so held, upon isprovided with a prolongation 7 which.

constitutes the stationary primary cylinder of the pugs). The lower end8 of this cylinder is 7 uced to form a seat for 'a ball 9 tensionedthereagainst g, the latter abutting the fixed abutment The pumping unitincludes a plunger cylinder 22 which fits closely about the primarycylinder 7. Its lower end is reduced to provide a valve seat 23 against24 seats, movement of which is limited by the cage 25. This plunger.cylinder is tensioned downwardly by a coil spring 26 the upper end ofwhich abuts the lower end of the primary cylinder 7, while its lower endby the coil spring,

which the ball t ereagainst by the abuts said cage 25 and constrains thelatter Y in the position shown. An arm 27 is welded or otherwise securedto the plunger-cylinder 22 and is provided with a piston 28 mounted'upon its u r end, which isreciprocated longitudin y of the secondarycyhnder 13 upon reciprocation of the plunger cylinder 22.

A push rod 29, arranged parallel with the prima cylinder 7, is welded tothe plunger cylinder 22 and extends through the sleeve 30 on the cover4. A lever 31, fulcrumed on the bracket 32 is pivoted to said push rodby the member 33. This lever 31 is arranged in convenient proximity tothe receptacle handle generally indicated at 34 so that the operator ofthe pump may conveniently actuate the same with the thumb of the hand.

The lowermost position of the pump un t is clearly shown in Fig. 1. Inthis p os1t1on it will be noted that the lower extremlty of the plungercylinder 22 extends in close rox1mity to the bottom of the can and to te place where the oil flows when the can 1s held vertical or is inclinedslightly forwardly, as is customary in use. In pumgmg oil with epresslonof the lever 31 to the position shown in Fig.

'2, the plunger cylinder 22 is carried longitudinally of the primarycylinder 7. When the lever 31 is relieved of pressure, the coil spring28 will plunge the plunger cylinder 22 into the oil, which forces theball 24 from the valve seat 23, so that the chamber in the plungercylinder 22 is filled with oil, Upon the succeeding upward stroke, thepressure of the oil forces the ball 24 against its seat and the ball 9from its seat so that the oil will be forced into the primary cylinder 7and be discharged through the spout 6, The ball 16 constitutes a closurefor the by-pass 14 preventing the oil from being forced into thesecondary cylinder 13. When the receptacle is held inverted or in aninverted inclined position, the oil accumulating at the top of the canis drawn into the secondary cylinder 13 when the lever 31 is relieved ofpressure and the coil spring 26 forces the plunger cylinder 22 and thepiston 28 downwardly. Upon the succeeding stroke, the piston 28 isadvanced towards the ball 20 adapted to co-act with the valve seat 19and the oil contained within the secondary cylinder l3 forces said ballto close and is forced past the ball 16 into the primary cylinder 7,forcing the ball 9 to seat against its seat 8, and then through theprimary cylinder 7 and out the discharge spout 6;

From the foregoing it is obvious that we have provided an oil ump whichis efficient in operationin that 1t will pump oil from the receptacleirrespective of whether the same is held vertical or inverted; in whichthe parts are comparatively few and may be manufactured withoutelaborate and extensive facilities, and in which the parts will functionfor extensive periods without appreciable wear or breakage.

While the preferred embodiment of the invention has been described it isto be understood that minor changes in the details of construction,combination and arrangement of co-operating elements may be resorted toWithin the scope of what is claimed without departing from the spirit ofthe invention.

What we claim as new is:

1. The combination with an oil receptacle provided with a dischargespout, of a statlonary primary valved cylinder in said receptacleconnected with said discharge spout; a reciprocable plunger cylinder onsaid rimary cylinder for delivering oil theret rough; a stationaryvalved cylinder connecting with said primary cylinder; means carried bysaid plunger cylinder extending into the secondary cylinder andconnecting with a piston in said secondary cylinder for delivering oiltherethrough; and hand actuated means for reciprocating said plungercylinder and associated mechanism.

2. The combination with an oil receptacle secondary provided with adischarge spout, of a sta-' tionary primary cylinder in said receptacleextending in close proximity to the bottom thereof; a stationarysecondary cylinder parallel and connecting with said primary cylinderextending in close proximity to the top of said receptacle; a plungercylinder reciprocable on said primary cylinder adapted to force oilthereinto; a piston carried by said plunger cylinder worln'n in saidsecondary cylinder, adapted to aw oil thereinto and discharge oiltherethrough into said primary cylinder and out said discharge spout;and means operable from the exterior of said receptacle for actuatingsaid plunger cylinder and piston.

3. The combination with a receptacle provided with a cover and adischarge spout, of a stationary primary cylinder in said receptacleconstituting a prolongation of said spout; a check valve in the lowerend thereof a stationary secondary cylinder mounted parallel with saidprimary cylinder; a check valve for the upper end thereof; a by-passconnecting said primary and secondary cylinders; a check valve in saidby-pass; a plunger cylinder on said primary cylinder; a check valve onthe lower end thereof; a coil spring in said plunger cylinder abuttingsaid primary cylinder for actuating said plunger cylinder downwardly; apiston connected to said plunger cyllnder working in said secondarycylinder; av

push rod connected to said plunger cylinder extending through saidreceptacle cover; anda thumb actuated lever for reciprocating said pushrod.

4. The combination with a receptacle provided with a cover and dischargespout, of a primary cylinder constituting a prolongation of saiddischarge spout; a valve seatln the lower end of said primary cylinder;a ball constituting a valve in connectio n w1th said valve seat; a coilspring posit oned within said primary cylinder tensioned against saidball to seat the same; a secondary cylinder parallel with said prlmarycylinder; a valve seat in the upper end thereof; a ball. forming a checkvalve connection with said seat; a by-pass connecting said secondarycylinder to said pnmary cylinder for preventing displacement of saidsecondary cylinder; :1. second valve seat on the side of said secondarycylinder; a ball in said by-pass forming a check Valve in connectionwith said second valve seat; a second coil spring mounted in saidprimary cylinder tensioned against said ball in said by-pass to seat thesame; a plunger cylinder mounted upon said primary cylinder; a valveseat in the lower end thereof; a ball forming a check valve inconnection with said last mentioned seat; a cage for preventingdisplacement of said last mentioned ball; a coil; spring positioned said1 ,ese,a15 i 8 plunger cylinder abutting the end of saidand said lungercylinder and piston to 1. primary cylinder and said cage, retainingforce oil t rough said cylinders and disthe latter in position; an armmounted upon charge spout. a 4

said plunger cylinder; a piston on the end In testimony whereof, weafiix our signaof said arm working in said secondary cyltures.

inder; a push rod mountedon said plunger cylinderextending through saidcover; and ALRIK JOHNSON. a lever fulcrumed on said cover and pivotedOLOF PERSSON. to said push rod for reciprocating the same PETE JOHNSON.

